# Copyright 2020 Zhejiang Lab. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# =============================================================

from typing import Union, Sequence

# INPUT Metadata
def ImageInput( size:          Union[Sequence[int], int],
                range:         Union[Sequence[int], int],
                space:         str,
                normalize:     Union[Sequence]=None):
    assert space in ['rgb', 'gray', 'bgr', 'rgbd']
    return dict(
        size=size, 
        range=range, 
        space=space, 
        normalize=normalize
    )